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biebergeo

  • 4 years ago

find a b c d diagram attached!

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  1. biebergeo
    • 4 years ago
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    |dw:1335311854394:dw|

  2. LyraElizabethAdams
    • 4 years ago
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    Okay . . . . do you know if the four angles in the middle are all right angles?

  3. biebergeo
    • 4 years ago
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    |dw:1335312024131:dw|

  4. biebergeo
    • 4 years ago
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    no i don't kno it doesn't indicate

  5. LyraElizabethAdams
    • 4 years ago
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    Okay

  6. LyraElizabethAdams
    • 4 years ago
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    Does the problem give any other info., or is what you put up all they give you?

  7. biebergeo
    • 4 years ago
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    that is all it gave :( i can't figure it out.

  8. LyraElizabethAdams
    • 4 years ago
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    Okay, I understand . . . don't worry

  9. biebergeo
    • 4 years ago
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    do you understand it?

  10. LyraElizabethAdams
    • 4 years ago
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    One sec . . . I'm looking up a rule for this

  11. biebergeo
    • 4 years ago
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    okay thanks

  12. LyraElizabethAdams
    • 4 years ago
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    Well, I thought that you might need to use the property for adjacent angles (with alternate interior, exterior, etc.), but I'm not sure if that would work, here. As I'm a bit rusty with this, let me see if I can get someone else on here, to help you . . . .

  13. biebergeo
    • 4 years ago
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    that sounds familiar maybe you are correct

  14. LyraElizabethAdams
    • 4 years ago
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    I'm asking someone to see if he can help you . . . 1 sec

  15. LyraElizabethAdams
    • 4 years ago
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    Remember that the key thing here, is that triangles have 180 degrees

  16. mubzz
    • 4 years ago
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    For angles in the same segment, angle at centre is twice angle at the circumference. Therefore, b = 2*53 = 106 b and c are angles on a straight line and their sum should be 180, therefore c = 180-106 c= 74 for a, again use the same property used to find b, therefore a is also 53 Another property is that the angle subtended by the diameter (in this case it is the line that passes through centre and touches a b and c) is always 90. Therefore (d+53)=90 Answers: a = 53 b = 106 c = 74 d = 37

  17. LyraElizabethAdams
    • 4 years ago
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    Ah . . . thanks mubzz!

  18. biebergeo
    • 4 years ago
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    THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!

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